Below are two swfs on that has trace statement inside the test loop, and the other does not. When you press the test button a test loop will run for 100 milliseconds. Each iteration of that loop will increment a counter and in the case of the first swf trace the counter. When the loop finished the count will be output next to "result". This count will show us how many times the loop was able to run doing the 100 millisecond time frame.